| Civitavecchia to Cognac | 652.14 mi (1,049.52 km) |
| Civitavecchia to Cogolin | 279.24 mi (449.39 km) |
| Civitavecchia to Colmar | 466.51 mi (750.77 km) |
| Civitavecchia to Colombes | 659.32 mi (1,061.07 km) |
| Civitavecchia to Colomiers | 539.79 mi (868.71 km) |
| Civitavecchia to Combs-la-Ville | 637.18 mi (1,025.44 km) |
| Civitavecchia to Comines | 729.24 mi (1,173.60 km) |
| Civitavecchia to Compiegne | 664.42 mi (1,069.28 km) |
| Civitavecchia to Concarneau | 863.37 mi (1,389.46 km) |
| Civitavecchia to Conde-sur-l'Escaut | 696.56 mi (1,121.00 km) |
| Civitavecchia to Conflans-Sainte-Honorine | 668.00 mi (1,075.04 km) |
| Civitavecchia to Corbas | 422.57 mi (680.07 km) |
| Civitavecchia to Corbeil-Essonnes | 637.26 mi (1,025.57 km) |
| Civitavecchia to Cormeilles-en-Parisis | 663.36 mi (1,067.57 km) |
| Civitavecchia to Cosne sur Loire | 568.78 mi (915.36 km) |
